Outdoor water purifier with backwashing function

Abstract

Provided is an outdoor water purifier with backwashing function relating to a mini outdoor portable backwashing water purifier. It comprises a raw water inlet apparatus comprising a raw water inlet channel and a water inlet one-way valve device provided on the raw water inlet channel; a filtering apparatus comprising a filtering chamber and a filter core assembly provided therein, provided behind the water inlet one-way valve device and communicating with the raw water inlet apparatus; a piston apparatus comprising a piston cylinder, a piston located in the chamber of the piston cylinder, a piston rod and a handle, the piston cylinder chamber communicating with the filtering apparatus; and a purified water outlet apparatus comprising a purified water outlet channel provided with a water outlet one-way valve device, and a purified water outlet provided with a switch device. It further comprises a backwashing drainage apparatus communicating with the filtering apparatus.

The invention claimed is: 
     
       1. An outdoor water purifying system with backwash function, comprising
 a raw water inlet apparatus, comprising a raw water inlet channel and a water inlet one-way valve device provided on the raw water inlet channel; 
 a filtering apparatus, comprising a filtering chamber and a filter core assembly provided in the filtering chamber, wherein the filtering apparatus is provided behind the water inlet one-way valve device and communicates with the raw water inlet apparatus; 
 a piston apparatus, comprising a piston cylinder, a piston located in a chamber of the piston cylinder, a piston rod and a handle, wherein the piston cylinder chamber communicates with the filtering apparatus; and 
 a purified water outlet apparatus, comprising a purified water outlet channel and a purified water outlet, wherein the purified water outlet channel is provided with a water outlet one-way valve device; 
 wherein the outdoor water purifying system further comprises a backwash drainage apparatus communicating with the filtering apparatus; and the purified water outlet is provided with a switch device, and the backwash drainage apparatus comprises a drainage hole, with a one-way valve ball provided in the drainage hole, and the one-way valve ball is configured in such a way that a steel bead, an adjustable screw and a reset spring between the steel bead and the adjustable screw are provided in a channel of the drainage hole. 
 
     
     
       2. The outdoor water purifying system with backwash function according to  claim 1 , wherein the backwash drainage apparatus comprises a drainage hole, and the drainage hole is provided thereon with a sliding cover. 
     
     
       3. The outdoor water purifying system with backwash function according to  claim 2 , wherein the purified water outlet is provided with a switch device, and the switch device is a rotary opening-closing device. 
     
     
       4. The outdoor water purifying system with backwash function according to  claim 1 , wherein the purified water outlet is provided with a switch device, and the switch device is a rotary opening-closing device.